Humidity control assembly and humidity control equipment

Abstract

The utility model provides a humidity control assembly and humidity control equipment. The humidity control assembly comprises a wet film, a heat exchanger arranged on the air outlet side of the wet film, a water blocking groove formed in the bottom of the heat exchanger and a water pan arranged below the wet film and the water blocking groove. The water blocking groove comprises a first bottom plate, a first folded edge, a second folded edge and a third folded edge. One of the first folding edge and the second folding edge is arranged at one end, close to the wet film, of the first bottom plate and fixedly arranged on one side, close to the wet film, of the heat exchanger; the other one is arranged at one end of the first bottom plate away from the wet film; third folded edges are arranged at one end or two ends of the extending direction of the second folded edge; the first folded edge and the second folded edge extend from the first bottom plate to the side away from the water pan, and the third folded edge extends from the first bottom plate to the side close to the water pan. According to the humidity control assembly and the humidity control equipment, the problems of air supply, water blowing and heat exchanger fin corrosion can be effectively reduced, and the safety and reliability of the equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of humidification and dehumidification equipment, and in particular to a humidity control component and a humidity control device. Background Art

[0002] Data centers and some special scenarios have high requirements for the temperature and humidity control of the environment. Considering costs, most data centers will choose computer room air conditioners to adjust the temperature and humidity. However, this adjustment method often makes it impossible to accurately control the humidity, and there is a hidden danger of safety problems caused by too low or too high humidity. Considering air quality, a small number of data centers will choose high-precision air conditioners or ultra-high-precision air conditioners. Although this adjustment method can accurately control both the temperature and humidity, the equipment cost and energy consumption cost will increase significantly.

[0003] As the requirements for temperature and humidity control in data centers and special scenarios become more and more stringent, humidification and dehumidification integrated devices with a compact structure have attracted more and more widespread attention. The humidification and dehumidification integrated device with a compact structure occupies less space in the data center and can be adjusted continuously with the load change. It can achieve variable frequency dehumidification or humidification, quickly make the space humidity reach the requirements, and the temperature and humidity adjustment can be accurately controlled. In the process of implementing the present application, the inventor found that there are at least the following problems in the prior art: due to the overly compact structure of the above-mentioned humidification and dehumidification integrated device, the heat exchanger is close to the wet film, and the two are almost completely fitted. The fins of the heat exchanger are extremely easy to be polluted by the circulating water of the wet film, resulting in caking on the fin surface and even causing corrosion of the fins. In addition, due to the large air volume during humidification, the circulating water of the wet film entrained by the return air will even be carried out of the unit, causing water blowing on the supply air side, which poses a certain safety hazard and affects the safety and reliability of the equipment. Summary of the Invention

[0004] Based on this, the present application provides a humidity control component and a humidity control device to improve the problems that affect the safety and reliability of the equipment, such as water blowing on the supply air and corrosion of the heat exchanger fins, existing in the prior art.

[0005] To achieve the above object, the technical solution of the embodiment of the present application is realized as follows:

[0006] On the one hand, the embodiment of the present application provides a humidity control component, including a wet film, a heat exchanger arranged on the air outlet side of the wet film, a water retaining tank arranged at the bottom of the heat exchanger, and a water receiving tray arranged below the wet film and the water retaining tank;

[0007] The water retaining groove includes a first bottom plate, a first flanging, a second flanging and a third flanging; one of the first flanging and the second flanging is arranged at one end of the first bottom plate close to the wet film and is fixed on one side of the heat exchanger close to the wet film; the other is arranged at one end of the first bottom plate far from the wet film; the third flanging is arranged at one end or both ends in the extending direction of the second flanging; both the first flanging and the second flanging extend from the first bottom plate to the side far from the water receiving tray, and the third flanging extends from the first bottom plate to the side close to the water receiving tray.

[0008] In one embodiment, it further includes an exhaust fan arranged above the heat exchanger. The first flanging is arranged at one end of the first bottom plate close to the wet film, the second flanging is arranged at one end of the first bottom plate far from the wet film, and the first bottom plate is inclined downward from the side of the first flanging to the side of the second flanging.

[0009] In one embodiment, the water receiving tray includes a second bottom plate and a third bottom plate. The second bottom plate includes a first end and a second end opposite to each other. The third bottom plate includes a third end and a fourth end opposite to each other. The second end is connected to the third end. The second bottom plate is inclined downward from the side of the first end to the side of the second end, and the third bottom plate is inclined downward from the side of the fourth end to the side of the third end. And a drain hole is arranged at the connection of the second bottom plate and the third bottom plate.

[0010] In one embodiment, the humidity control component further includes a water supply device. The water supply device includes a water tank, a water pump and a water distributor; the water tank is arranged below the water receiving tray and the drain hole is communicated into the water tank through a pipeline. The water pump is connected to the water distributor and the water tank respectively through pipelines. The water distributor is arranged above the wet film and is used for watering the wet film.

[0011] In one embodiment, the humidity control component further includes a water retaining and breathable plate. The water retaining and breathable plate is arranged between the wet film and the heat exchanger. The water retaining and breathable plate is arranged above the water retaining groove, and the first flanging is arranged between the wet film and the water retaining and breathable plate.

[0012] On the other hand, an embodiment of the present application provides a humidity control device, including the humidity control component as described above.

[0013] In one embodiment, the humidity control device further includes a housing and an exhaust fan. The humidity control component is arranged in the housing. A partition is arranged at the upper part of the housing. The partition divides the interior of the housing into an upper cavity and a lower cavity. The exhaust fan is arranged in the upper cavity, and the wet film and the heat exchanger are arranged in the lower cavity.

[0014] In one embodiment, the humidity control device further includes a wet film wind baffle, which is arranged on the side of the wet film away from the heat exchanger. The top of the wet film wind baffle extends to the bottom of the partition board, and the bottom of the wet film wind baffle extends to the vicinity of the top of the wet film.

[0015] In one embodiment, the humidity control device further includes an upper closing plate, which is located above the wet film and the heat exchanger. One end of the upper closing plate is hermetically connected to the wet film wind baffle, and the other end extends to the surface of the heat exchanger away from the wet film. The other end faces of the upper closing plate respectively extend to be hermetically connected to the inner wall surface of the housing; the upper closing plate, the wet film wind baffle and the heat exchanger divide the lower cavity into an air inlet cavity and an air outlet cavity.

[0016] In one embodiment, the humidity control device further includes an air inlet module and an air supply module. The air inlet module is arranged on the housing on the side of the wet film away from the heat exchanger, and the air supply module is arranged above the air inlet module and is located on the housing of the upper cavity.

[0017] The present application has at least the following beneficial effects: The humidity control component in the embodiment of the present application is provided with a water retaining groove at the bottom of the heat exchanger. The water retaining groove is provided with flanges (a first flange and a second flange) on the sides close to and away from the wet film of the heat exchanger respectively. The water retaining groove can completely shield the bottom of the heat exchanger, preventing the gas from blowing the water in the water receiving tray onto the heat exchanger when sucking upwards, and avoiding caking or even corrosion at the bottom of the heat exchanger. At the same time, the water retaining groove can also collect the condensed water dripping from the heat exchanger, and the condensed water can flow into the lower water receiving tray through the opening formed by the third flange, avoiding excessive water accumulation in the water retaining groove and contacting the bottom of the heat exchanger, so as to further improve the safety and reliability of the humidity control component. The humidity control device in the embodiment of the present application includes the above-mentioned humidity control component, so it also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the humidity control device in the embodiment of the present application.

[0019] Figure 2 It is a schematic structure diagram of the water retaining groove in the embodiment of the present application.

[0020] Figure 3 is Figure 2 The enlarged structure diagram at position A of

[0021] Figure 4 It is a schematic assembly structure diagram of the water retaining groove and the heat exchanger in the embodiment of the present application.

[0022] The meanings of the reference numerals in the drawings are as follows:

[0023] 1. Housing; 101. Upper cavity; 102. Partition board; 103. Lower cavity; 2. Air supply module; 3. Wet film wind baffle; 4. Air inlet module; 5. Water blocking and breathable board; 6. Wet film; 7. Water receiving tray; 71. Second bottom plate; 72. Drainage hole; 73. Third bottom plate; 8. Water retaining groove; 81. First bottom plate; 82. First folded edge; 83. Second folded edge; 84. Third folded edge; 9. Heat exchanger; 10. Upper closing plate; 11. Exhaust fan; 12. Water supply device; 121. Water tank; 122. Water pump; 123. Water distributor. Detailed implementation manners

[0024] The technical solution of the present application will be further elaborated in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit the implementation manner of this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application. In the description of this application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0027] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0028] Please refer to Figure 1 , the humidity control device of the embodiment of this application includes a housing 1 and a humidity control component disposed inside the housing 1. The humidity control device of this embodiment is an integrated humidification and dehumidification device, and in other embodiments, it can also be a humidity control device of other structural forms, which is not specifically limited.

[0029] Specifically, asFigure 1 As shown, in this embodiment, a partition plate 102 is provided at the upper part of the housing 1, and the partition plate 102 divides the interior of the housing 1 into an upper cavity 101 and a lower cavity 103.

[0030] The humidity control assembly includes a wet film 6, a heat exchanger 9 provided on the air outlet side of the wet film 6, an exhaust fan 11 provided above the heat exchanger 9, a water retaining tank 8 provided at the bottom of the heat exchanger 9, and a water receiving tray 7 provided below the wet film 6 and the water retaining tank 8.

[0031] The exhaust fan 11 is arranged in the upper cavity 101 of the housing 1, and components such as the wet film 6 and the heat exchanger 9 are arranged in the lower cavity 103. The partition plate 102 is provided with ventilation holes (not shown) communicating the upper cavity 101 and the lower cavity 103. To avoid the occurrence of problems such as uneven flow field and excessive local wind speed in the upper cavity 101 resulting in blown water, two or more exhaust fans 11 can be provided in the upper cavity 101 to enhance the uniformity of the gas flow field in the upper cavity 101 and prevent the occurrence of blown water problems. An air inlet module 4 and an air supply module 2 are arranged in parallel on one side surface of the housing 1. The air inlet module 4 is arranged on the housing 1 corresponding to the lower cavity 103, and the air supply module 2 is arranged on the housing 1 corresponding to the upper cavity 101.

[0032] The wet film 6 and the heat exchanger 9 are arranged in parallel in the lower cavity 103, and the wet film 6 is arranged close to the air inlet module 4. As Figure 2 and Figure 3As shown in the figure, the water retaining trough 8 includes a first bottom plate 81, a first folding edge 82, a second folding edge 83, and a third folding edge 84. One of the first folding edge 82 and the second folding edge 83 is provided at one end of the first bottom plate 81 close to the wet film 6 and is fixed to the side of the heat exchanger 9 close to the wet film 6; the other is provided at one end of the first bottom plate 81 far from the wet film 6; one end or both ends in the extending direction of the second folding edge 83 are provided with the third folding edge 84; both the first folding edge 82 and the second folding edge 83 extend from the first bottom plate 81 to the side away from the water receiving tray 7, and the third folding edge 84 extends from the first bottom plate 81 to the side close to the water receiving tray 7. In this embodiment, the first folding edge 82 is fixed to the side of the heat exchanger 9 close to the wet film 6, the second folding edge 83 is arranged on the side of the heat exchanger 9 far from the wet film 6, and the water retaining trough 8 on one side of the second folding edge 83 is suspended above the water receiving tray 7. The second folding edge 83 is turned up to prevent the circulating water of the wet film 6 from being too much accumulated and being involuted to the bottom of the heat exchanger 9 along the first bottom plate 81 of the bottom groove of the heat exchanger 9. The first bottom plate 81 of the water retaining trough 8 is rectangular. At the other two ends of the first bottom plate 81 except where the first folding edge 82 and the second folding edge 83 are provided, folding edges that are bent upward can be respectively arranged, or the other two ends can be directly connected to the inner wall of the housing 1 to form a water receiving container, so that the water in the water retaining trough 8 can only flow out from the opening formed by the third folding edge 84. To make the water in the water retaining trough 8 flow out easily, the first bottom plate 81 can be inclined so that the end of the first bottom plate 81 provided with the first folding edge 82 is higher than the end provided with the second folding edge 83, and the third folding edge 84 is at a lower position, so that the water can flow out from the third folding edge 84 easily. For example, as Figure 4 shown, the included angle α between the first bottom plate 81 and the horizontal plane can be set to 5° so that the condensed water dripping from the heat exchanger 9 can be smoothly discharged in the dehumidification mode. During operation, due to the suction effect of the exhaust fan 11, a negative pressure cavity will be formed in the space between the bottom of the wet film 6 and the water receiving tray 7. Part of the air flowing through the wet film 6 will flow downward, flow into the cavity between the bottom of the wet film 6 and the water receiving tray 7, and then flow upward through the bottom of the heat exchanger 9 and mix with the main air flow. Since the circulating water volume of the wet film 6 is much larger than the evaporation volume, the unevaporated circulating water will form a water curtain at the bottom of the wet film 6 and converge in the cavity between the bottom of the wet film 6 and the water receiving tray 7. At the same time, the air flow velocity flowing to the bottom of the wet film 6 is relatively large, and a large amount of water droplets will be carried when flowing to the bottom of the heat exchanger 9, which is extremely easy to cause caking at the bottom of the heat exchanger 9 and even corrosion. In this embodiment, by adding the water retaining trough 8 at the bottom of the heat exchanger 9, the water droplets carried by the air can be blocked, converged and then re-flowed to the water receiving tray 7.

[0033] As Figure 1As shown, the water receiving tray 7 is provided in the housing 1, below the wet film 6 and the water retaining tank 8, and includes a second bottom plate 71 and a third bottom plate 73. The second bottom plate 71 includes a relative first end and a second end, and the third bottom plate 73 includes a relative third end and a fourth end. The second end is connected to the third end. The second bottom plate 71 is inclined downward from the first end side to the second end side, and the third bottom plate 73 is inclined downward from the fourth end side to the third end side. A drain hole 72 is provided at the connection of the second bottom plate 71 and the third bottom plate 73. The drain hole 72 can be provided at the lowest position of the water receiving tray 7 to facilitate the discharge of the liquid in the water receiving tray 7. For example, the drain hole 72 can be provided at one end of the second bottom plate 71 and the third bottom plate 73, and the other end of the second bottom plate 71 and the third bottom plate 73 is higher than the end where the drain hole 72 is provided. Or, two second bottom plates 71 and two third bottom plates 73 can be provided. The two second bottom plates 71 are connected, and the two third bottom plates 73 are connected. The second ends of the two second bottom plates 71 and the first ends of the two third bottom plates 73 are connected. The mutually remote ends of the two second bottom plates 71 are higher than the connected ends, and the mutually remote ends of the two third bottom plates 73 are higher than the connected ends. The connection vertices of the four bottom plates (two second bottom plates 71 and two third bottom plates 73) are at the lowest point of the water receiving tray, and the drain hole 72 can be provided there. The water receiving tray 7 can receive the liquid flowing down from the wet film 6 and the water retaining tank 8, and after converging the liquid, return it to the water tank 121 of the water supply device 12 below the water receiving tray 7.

[0034] Please continue to refer to Figure 1 , the humidity control component of this embodiment further includes a water supply device 12. The water supply device 12 includes a water tank 121, a water pump 122, and a water distributor 123. The water tank 121 is provided below the water receiving tray 7, and the drain hole 72 is communicated with the inside of the water tank 121 through a pipeline. The water tank 121 is used for storing water to supply the wet film 6 to achieve the humidification function. The water tank 121 is in a semi-closed state. A return water hole corresponding to the drain hole 72 of the water receiving tray 7 is provided on the upper cover of the water tank 121, and the water discharged from the water receiving tray 7 can flow back into the water tank 121 through the return water hole. The water inlet of the water pump 122 is connected to the bottom of the water tank 121 through a pipeline, and the water outlet of the water pump 122 is connected to the water distributor 123 through a pipeline. The water distributor 123 is provided above the wet film 6 and is used for distributing water to the wet film 6. The water distributor 123 can be, for example, a spray head, and the spray head is used for spraying water to the wet film 6 to achieve the humidification function. The water pump 122 sucks the water in the water tank 121 into the water distributor 123 and distributes water to the wet film 6 through the water distributor 123.

[0035] As Figure 1 and Figure 4As shown in the figure, a water baffle and air permeable plate 5 can also be provided between the wet film 6 and the heat exchanger 9. The water baffle and air permeable plate 5 is used to isolate the heat exchanger 9 and the wet film 6, and functions to block water and allow air to pass through, preventing the problem of water being blown by the air supply from occurring on the wet film 6, which may cause corrosion of the fins of the heat exchanger 9. The water baffle and air permeable plate 5 is provided between the wet film 6 and the heat exchanger 9, and is disposed above the water baffle tank 8, and the first folded edge is disposed between the wet film 6 and the water baffle and air permeable plate 5. The water baffle and air permeable plate 5 can adopt an integral structure, such as a whole plate, and the plate is made of a hydrophobic and air permeable material; alternatively, the water baffle and air permeable plate 5 can adopt a splicing or a hollow design to ensure air circulation while blocking water, such as a structure similar to a shutter or a structure of multiple small fins. During the humidification process, under the action of the exhaust fan 11, air enters the interior of the housing 1 from the air inlet module 4, and after passing through the wet film 6, the water baffle and air permeable plate 5, and the heat exchanger 9 in sequence, it is discharged from the housing 1 through the air supply module 2. Since a water film will be formed on the surface of the wet film 6 during operation, and the air flowing through the wet film 6 will carry some small water droplets (water vapor) of the circulating water of the wet film 6 and flow towards the heat exchanger 9. At this time, the water baffle and air permeable plate 5 on the side of the heat exchanger 9 close to the wet film 6 can absorb and filter the small water droplets (water vapor) in the air, preventing the circulating water of the wet film 6 from condensing on the surface of the heat exchanger 9, and reducing the risk of caking and corrosion on the surface of the heat exchanger 9 caused by long-term operation.

[0036] As Figure 1 shown, the humidity control device of this embodiment further includes a wet film wind baffle 3 and an upper closing plate 10. The wet film wind baffle 3 is disposed on the side of the wet film 6 away from the heat exchanger 9. The top of the wet film wind baffle 3 extends to the bottom of the partition plate 102, and the bottom of the wet film wind baffle 3 extends to near the top of the wet film 6 (it can be slightly higher or slightly lower than the top of the wet film). At least both ends of the wet film wind baffle 3 exceed both sides of the wet film 6. For example, both ends of the wet film wind baffle 3 can be connected to the inner wall of the lower cavity 103. The upper closing plate 10 is located above the water distributor 123 and the heat exchanger 9. The wet film wind baffle 3 extends in the up and down direction, while the closing plate is disposed along the cross-sectional direction of the housing 1. One end of the upper closing plate 10 is hermetically connected to the wet film wind baffle 3, and the other end extends to the surface of the heat exchanger 9 on the side away from the wet film 6. The other end faces of the upper closing plate 10 respectively extend to be hermetically connected to the inner wall surface of the housing 1. That is to say, the upper closing plate 10, the wet film wind baffle 3, and the heat exchanger 9 together divide the lower cavity 103 into an air inlet cavity on the side of the heat exchanger 9 close to the air inlet module 4 and an air outlet cavity on the side of the heat exchanger 9 away from the air inlet module 4, so that most of the gas entering the housing 1 from the air inlet module 4 can pass through the heat exchanger 9 and then be discharged from the housing 1 through the air supply module 2, avoiding the air directly entering the air supply side through the ventilation holes from the upper area without passing through the wet film 6 and the heat exchanger 9, thereby improving the control accuracy of the humidity control device.

[0037] In the humidity control component and the humidity control device according to the embodiments of the present application, by adding a water-blocking and air-permeable plate between the wet film and the heat exchanger, it is possible to prevent the air flowing through the wet film from carrying water vapor directly to the heat exchanger, reducing the risk of caking and corrosion on the surface of the heat exchanger fins. A water-blocking groove structure is added at the bottom of the heat exchanger, which can prevent the air flowing through the bottom of the wet film from carrying the circulating water and rolling back to the heat exchanger, causing caking or corrosion at the bottom of the heat exchanger. The humidity control component and the humidity control device according to the embodiments of the present application can effectively reduce the contact between the heat exchanger and water vapor, prevent the occurrence of water blowing on the air supply side, and ensure the safe and reliable operation of the device.

[0038] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0039] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A humidity control component, characterized in that, It includes a wet film, a heat exchanger provided on the air outlet side of the wet film, a water retaining tank provided at the bottom of the heat exchanger, and a water receiving tray provided below the wet film and the water retaining tank; The water retaining tank includes a first bottom plate, a first folded edge, a second folded edge and a third folded edge; one of the first folded edge and the second folded edge is provided at one end of the first bottom plate close to the wet film and is fixed on the side of the heat exchanger close to the wet film; The other is provided at the end of the first bottom plate far from the wet film; the third folded edge is provided at one end or both ends in the extending direction of the second folded edge; both the first folded edge and the second folded edge extend from the first bottom plate to the side far from the water receiving tray, and the third folded edge extends from the first bottom plate to the side close to the water receiving tray.

2. The humidity control component according to claim 1, characterized in that It further includes an exhaust fan provided above the heat exchanger. The first folded edge is provided at one end of the first bottom plate close to the wet film, and the second folded edge is provided at the end of the first bottom plate far from the wet film, and the first bottom plate is inclined downward from the side of the first folded edge to the side of the second folded edge.

3. The humidity control component according to claim 1, characterized in that The water receiving tray includes a second bottom plate and a third bottom plate. The second bottom plate includes a first end and a second end opposite to each other. The third bottom plate includes a third end and a fourth end opposite to each other. The second end is connected to the third end. The second bottom plate is inclined downward from the side of the first end to the side of the second end, and the third bottom plate is inclined downward from the side of the fourth end to the side of the third end, and a drain hole is provided at the connection of the second bottom plate and the third bottom plate.

4. The humidity control component according to claim 3, wherein It further includes a water supply device. The water supply device includes a water tank, a water pump and a water distributor; the water tank is provided below the water receiving tray and the drain hole is communicated into the water tank through a pipeline. The water pump is connected to the water distributor and the water tank respectively through pipelines. The water distributor is provided above the wet film for watering the wet film.

5. The humidity control component according to claim 1, wherein It further includes a water retaining and breathable plate. The water retaining and breathable plate is provided between the wet film and the heat exchanger. The water retaining and breathable plate is arranged above the water retaining tank, and the first folded edge is arranged between the wet film and the water retaining and breathable plate.

6. A humidity control device, characterized in that, It includes the humidity control component according to any one of claims 1 to 5.

7. The humidity control device according to claim 6, characterized in that, It further includes a housing and an exhaust fan. The humidity control component is arranged in the housing. A partition is provided at the upper part of the housing. The partition divides the interior of the housing into an upper cavity and a lower cavity. The exhaust fan is arranged in the upper cavity, and the wet film and the heat exchanger are arranged in the lower cavity.

8. The humidity control device according to claim 7, wherein, It further includes a wet film wind baffle. The wet film wind baffle is arranged on the side of the wet film far from the heat exchanger. The top of the wet film wind baffle extends to the bottom of the partition, and the bottom of the wet film wind baffle extends to near the top of the wet film.

9. The humidity control device according to claim 8, wherein, Further included is an upper closing plate which is located above the wet film and the heat exchanger. One end of the upper closing plate is hermetically connected to the wet film wind baffle, and the other end extends to the surface of the heat exchanger on the side away from the wet film. The other end faces of the upper closing plate respectively extend to be hermetically connected to the inner wall surface of the housing. The upper closing plate, the wet film wind baffle and the heat exchanger divide the lower cavity into an air inlet cavity and an air outlet cavity.

10. The humidity control device according to claim 7, characterized in that, Further included are an air inlet module and an air supply module. The air inlet module is arranged on the housing on the side of the wet film away from the heat exchanger, and the air supply module is arranged above the air inlet module and is located on the housing of the upper cavity.

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